岩手県盛岡市の交信攪乱剤設置リンゴ園におけるモモシンクイガの被害と補完防除の効果

抄録

The emergence of adult males of Carposina sasakii and their periods of fruit infestation were investigated in apple orchards in Iwate Prefecture where the moth species was controlled using a mating disruptor alone as well as with supplementary insecticides. Fruit damage caused by this pest was not observed when supplementary control was applied, although 2 years after supplementary control had ceased, fruit damage increased to 49.7%. In the orchard where severe C. sasakii damage occurred, fruit damage decreased 2 years after supplementary control was applied during the period of adult emergence.